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15 U.S. Code § 8702. Definitions
For the purposes of this chapter:(1) Block machine
The term “block machine” means a piece of equipment that utilizes vibration and compaction to form concrete masonry products.
(2) Board
The term “Board” means the Concrete Masonry Products Board established under section 8704 of this title.
(3) Cavity
The term “cavity” means the open space in the mold of a block machine capable of forming a single concrete masonry unit having nominal plan dimensions of 8 inches by 16 inches.
(4) Concrete masonry products
The term “concrete masonry products” refers to a broader class of products, including concrete masonry units as well as hardscape products such as concrete pavers and segmental retaining wall units, manufactured on a block machine using dry-cast concrete.
(5) Concrete masonry unitThe term “concrete masonry unit”—
(A)
means a concrete masonry product that is a manmade masonry unit having an actual width of 3 inches or greater and manufactured from dry-cast concrete using a block machine; and
(B)
includes concrete block and related concrete units used in masonry applications.